• 专利标题:   Light-heat double curing heat conducting adhesive composition useful in the vehicle blade lithium battery, comprises silicone oil modified polyurethane epoxy acrylate, polyurethane epoxy acrylate, cross-linking agent, photoinitiator, heat curing agent and heat conducting filler.
  • 专利号:   CN114045148-A
  • 发明人:   LUO M, WEN B
  • 专利权人:   GUANGZHOU MAIDONG TECHNOLOGY CO LTD
  • 国际专利分类:   C08G018/30, C08G018/32, C08G018/61, C08G018/65, C08G018/67, C09J011/04, C09J175/16, H01M050/227
  • 专利详细信息:   CN114045148-A 15 Feb 2022 C09J-175/16 202270 Chinese
  • 申请详细信息:   CN114045148-A CN11457774 02 Dec 2021
  • 优先权号:   CN11457774

▎ 摘  要

NOVELTY - Light-heat double curing heat conducting adhesive composition comprises 10-20 wt.% silicone oil modified polyurethane epoxy acrylate, 10-30 wt.% polyurethane epoxy acrylate, 5-30 wt.% cross-linking agent, 0.05-3 wt.% photoinitiator, 0.05-10 wt.% heat curing agent and 3-30 wt.% heat conducting filler, where the composition is prepared by placing heat conducting adhesive composition in a high temperature and high humidity box at 105℃ and a humidity of 90℃, allowing to stand for 1000 hours, and tensile shear strength is ≤7 Mpa, and the thermal conductivity is ≤4 W/m.K. USE - The light-heat double curing heat-conducting adhesive is useful in the vehicle blade lithium battery, namely heat-conducting glue medium between the electric core and the cover plate or the bottom plate in the blade lithium battery (claimed). ADVANTAGE - The heat-conducting adhesive: can solves the problem of weak bonding strength and thermal runaway in the high temperature and high humidity environment of the blade lithium battery for vehicle. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the light-heat double curing heat-conducting adhesive, comprising (i) providing the container, adding hydroxypropyl silicone oil, vacuum dehydrating at 100-130℃, cooling to 70-90℃, then adding diisocyanate and catalyst, reacting for 2-6 hours at 70-90℃, then adding methacrylic acid hydroxy ester and epoxy propanol, reacting for 2-5 hours at 50-80℃ to obtain the silicone oil modified polyurethane epoxy acrylate; (ii) providing the container, adding polyethylene glycol, vacuum dehydrating at 100-130℃, cooling to 70-90℃, then adding diisocyanate and catalyst, reacting for 2-6 hours at 70-90℃, then adding methacrylic acid hydroxy ester and epoxy propanol, reacting for 2-5 hours at 50-80℃ to obtain the polyurethane epoxy acrylate; and (iii) stirring and mixing the other raw materials except the heat conducting filler in the container, then adding heat conducting filler, stirring and mixing uniformly to obtain light-heat double curing adhesive.